Yeah, was just checking in case since I also wanted to see if the GFCI “issue” could be affecting someone else in a different way.
Appreciate the confirmation! Good luck with how they resolve this one for ya!
I got a response on my issue, and they said they recommend plugging a unit into a non-GFCI outlet since the Apex 300 (or possibly other Bluetti products) could trip a GFCI outlet.
I am facing the same issue. Would it be possible to arrange a firmware update for me as well, please? I am running on latest firmware like in the snowstorm’s message above.
Hello, please tell me the sn code and firmware version, thanks.
It’s AP3002523000800621
ARM: v2204.11
DSP: 2174.11
BMS: v1073.07
Hello, I have registered the firmware update for you
I am testing out the following to see if the AC cuts out at 100% charge.
@andrii.litvinov when you have the problem, did the AC cut out as SOC reach 100%? Were you charging using GRID or PV at that time? What was your working mode (backup, self consumption etc…)?
DSP V2174.12
ARM v2204.12
BMS 1073.07 (no change)
BMS B300 V1014.18
BMS B300k V1067.13
@snowstorm my setup is Apex 300 + B300, so sort of similar to yours. I only use charging from the GRID, no PV connected. I use it in backup mode. The issue reproduced with both standard and NEMA 14-50 cables. B300 BMS version is v1024.03.
I see that battery slightly discharges at times to 99% (or lower when the GRID power goes down), then gets charged back to 100%. Currently I don’t see any correlation of this issue to the charge level.
Do you still face this issue with the firmware update?
I have seen this 2x so far before the firmware update. Each time the apex system is charging using PV in a sunny day with about 600-800w of PV input and AC output is powering a modest 89w load. The SOC is steadily increasing, and it would hen rapidly increase to 100% at which point the AC output turns off. I am going to try reproducing it with grid charging. Tomorrow AM if it is sunny. I will try to reproduce it with PV charging.
I had this issue a few months ago, and a firmware update seems to have fixed the issue. However, that was several versions ago so I hope it hasn’t reappeared in newer firmware. Still, I’ve developed a habit to monitor the system whenever charging to 100%, so I can turn the AC back on if it turns off. I also usually run in Time of Use or Self-Consumption mode with max charge set below 100%, and have never had the AC shut off at anything below 100%.
I am happy to report that I was not able to reproduce the AC shutoff issue with my recently updated firmware
I have Apex300 with an B300k and 3xB300 connected
DSP V2174.12
ARM v2204.12
BMS 1073.07 (no change)
BMS B300 V1014.18
BMS B300k V1067.13
Reproduction scenario (2x before update)
Charge Apex300 System to 90% using grid. While using AC out around 70W. Grid is connected and pass-through is on. Charge Apex300 using 600w of solar. SOC increase to 100% and when it reaches 100%, AC output shuts off.
Situation Today after update
Last night, I have no load connected and charged Apex300 to 100% using grid. AC output remained on. Today, I let it drain to 98%, AC output running 70W load, charged with 400-600w of of solar to 100%, AC output remained on (note that grid was not connected).
One final reproduction case to check tomorrow (if sunny) is have grid connected as pass-through, and then charge it to 100% using PV.
So far, things seems to be looking up.
Currently I have following versions of firmware pushed to my unit by directly contacting support:
IoT: v8026.12 (updated several days ago)
DSP V2174.12 (updated several days ago)
ARM v2204.13 (updated today)
BMS 1073.07
BMS B300 v1024.07 (resolved an issue of B300 preventing the Apex 300 shutdown)
I can confirm that AC was never shut off after those updates over the past several days. Previously it happened regularly every 12 hours or less. The unit runs in backup mode and charges to 100%
Unfortunately… my AC output shut off 2x for me today despite having the following firmware.
iOT v8026.13
ARM v2204.13
DSP v2174.12
BMS v1073.07
B300 BMS V1014.18
B300k BMS V10674.13
In the morning, the SOC is high, near 95%. The unit’s AC output is on and powering a 70W load. The grid is plugged in and is going pass-through even though it is in self-consumption mode with set SOC 80% because the AC output wattage is below 150w (apparently, this is by design). The PV input is plugged in, and is charging using solar. When the SOC reaches 100%, the AC output turns off. All eco modes are off. There are no error codes active or in the history. The unit performs normally again when I manually turn the AC output back on.
Since the SOC is still around 99% and the sun is shining, my AC output shut off again by itself in an hour and I had to repeat the process.
I was advised by Bluetti to test my setup with just the Apex 300, Apex 300 + B300k and Apex300 + B300
I found that the AC cut off as SOC reaches 100% using PV charging only happened with Apex300 + B300. The AC remained on when Apex300 is used alone or when it is connected to B300k.
I’ve sent this info to them and am awaiting a response
Hello, I am experiencing the same issue. However, I’m not even using solar. It’s just plugged into the wall.
Charging mode set automatic.
I can’t tell if pass-through grid is working or not. It doesn’t even look like it is because whenever I have something plugged in, an AC on, there’s always an AC input and AC output. So I can’t verify the UPS is actually working. I kind of feel like I got scammed.
While it was sitting at 99% I was reading over the manual and then I heard the charger kick up and started charging at 1400 watts and then as soon as it hit 100% the AC shut off for the second time today. This thing is brand new. I received it the day before yesterday and I’ve already updated the firmware.
The device is set up as backup working mode.
There seems to be a button for select UPS, and it says standby, but I can’t press it.
I’m tempted to return it. and keep using my AC200 Max
You can verify whether UPS is working by unplugging the grid from the Apex300. If your AC output is kept on and your load are powered, then UPS is working. The Apex300 will always use grid to run AC load if the AC load is <150w, no matter what, they call that grid pass-through. If the AC output is >150w, then AC will only be used some of the time depending on operating mode.
In UPS mode, you cannot change the mode on the app. It says Standby and I think that’s the only mode available on the app. Note that when you are using 240v output (and only 240v output mode), the left set of 120V outlets are actually using “online” mode and not “standby” mode. They are always powered by the battery and will not glitch at all when AC goes out. The right set of 120V output are on standby mode and may glitch up to 20ms.
The AC cut off is definitely not normal. I am experiencing that when my Apex300 is connected to B300 batteries. I am working with Bluetti tech to find a solution now. What batteries are you using with your Apex300 when the AC output drop at 100% SOC happens?
I just came back because I just discovered that, yeah, i think it’s the B300 battery. I already had my suspicions when the estimated time remaining didn’t match up with the capacity of the B300 after i added it on. How annoying. I hope they can fix it. Maybe its an overcharge protection triggering. Because it seems like the apex thinks it only holds 2700 Wh. At least thats how it looks when calculating time remaining.
To answer your question i was running a b300k and a b300
@Unpopularpizza Please send an email to Bluetti support about this with the details and tell them you SN. This way, when there is firmware update, they can push it to your unit. I was testing this with the Apex alone, Apex+B300k and Apex+B300, and the only time it cut of is when the B300 is in use. The SOC of the B300 also seems out of sync, so there is likely some weird interaction here. But please email lsale@bluettipower.com
If you want to temporary avoid this issue, change the working mode to “self-consumption” and SOC to something less than 100%. This would prevent the unit from using grid to charge it beyond your set point. So you won’t hit 100% cut off issue. It sucks but is a temporary word around. That doesn’t work for me as I am also using solar to charge and it will hit 100% on a sunny day (though that is unlikely to happen as there is snow on my panels now).
Similar but slightly different issue on my end. I have registered the problem with Bluetti but have yet to hear back from them. I have 3 Apex 300 units connected to a Hub A1 and each has 3 B300K batteries connected. The Eco mode is shut off and they are not connected to solar. This power array is connected to a manual switch for home backup in the event of a power outage. Where the issue is similar is that the AC output at the front plugs is automatically shutting down a couple of times a day even though I have about 120W of output connected to the front outlets of one of the units. Moving the draw to one of the other Apex 300 head units has no effect. All three units turn off AC output relatively randomly but all at the same time since 2 of the units are acting as slaves to the master unit. What is also interesting is that the Hub A1 will report 500 to 600w of output when the actual is 120 to 150w as tested with a meter at the plugs. All of the units and the Hub A1 report the latest firmware. I sincerely hope that Bluetti figures out a fix for this quickly. I have sent in serial numbers and firmware screen shots. It is frustrating to send in a trouble ticket and wait days until you get a response from China. They really need to either base a higher level of US support here or at least have technical support working local hours.
I am currently testing out an updated BMS for the B300 batteries, will report back to see if it fixes the issue.
@Caesar1 your problem may be related but different. It looks like you have a wattage reporting issue and a AC output shut off issue. Does your AC shut off when the SOC reaches 100%? Do you have certain batteries attached to it? What kind of loads are you running?
3 Apex 300 Units connected to 3 B300K batteries each. They are all connected through a Hub A1. And yes, the AC shutoff seems to occur when SOC reaches 100%. The load being reported is 0W at the hub A1 level but a meter a the plugs show 120-150W.